Pune, India · Senior Android Engineer
platform owner · 50k+ MAU fintech · 5 platforms · one Kotlin codebase · an engineer who writes
5+ years building production Android. I owned the platform behind a ~964k-LOC financial SaaS app serving 50,000+ monthly users. I joined it with zero Kotlin in the codebase. I took the UI layer to ~87% Compose. Location accuracy, crash-free sessions, architecture a team can move fast in.
Open to remote (worldwide / India) and hybrid in Pune / Bengaluru
Selected build / gaddi
A Hinglish social-deduction bluffing game of power, satire & second chances. Gaddi ke liye kuch bhi karega.
// fit check
My AI assistant reads it against what I've actually shipped and answers the only question that matters: where I fit, and where I don't. No score inflation — the gaps come with the strengths.
// featured work
The work behind the numbers. Ask the chatbot for more depth on any of these.
50% → 95%
Field users' trip distances were off by large margins from urban canyons, tunnels, and OEM-throttled location updates.
Staged dead reckoning plus Kalman smoothing made mileage reliable enough to bill expense reimbursement against.
-85% crashes
A fast-growing ~964k-LOC app had a crash rate hurting its Play Store rating, driven by untraceable threading bugs.
At 22k DAU the Play Store listing went 1.6★/67 reviews to 4.5★/27.3K, closing 85% of the gap to a perfect 5.0, +181% rating, 407x review volume.
The Coroutine Court1~87% UI-layer Compose
XML views made UI changes slow and inconsistent, and design's theming requests meant touching dozens of files.
Reached ~87% UI-layer Compose coverage (455k of 523k LOC) verified per-screen against the legacy XML baseline; UI development friction dropped 60%.
Ghosts In The Recomposition2858 branches · 80% faster delivery
Every new white-label client meant manually forking, rebranding, and re-releasing the app: weeks of error-prone work, and the constraint that mattered was not building the feature once. It was doing that without forking the codebase per tenant.
858 white-label-named branches across two Android repos carry my commits (459 autos, 399 driver, a subset of the 1,179 total) spanning 150+ client codebases, with delivery time cut 80% versus manual per-client builds.
// projects & open source
Open-source apps built outside employer work, shipped end-to-end. The libraries and tooling underneath them are in The Source, below.
A Hinglish social-deduction bluffing game of power, satire & second chances. Gaddi ke liye kuch bhi karega.
Deterministic Kotlin Multiplatform social-deduction game with ISMCTS bot AI, shipped across Android, iOS, Desktop, and Web.
Offline-first mileage, travel & expense tracker on one Kotlin codebase across Android, iOS, Wear OS, watchOS & Desktop.
◇ 13 features · 412 screenshotsas of 2026-10-06
Offline-first mileage, travel, and expense tracker spanning five platforms from one Kotlin codebase, with a real Kotlin/Ktor backend built in, off by default.
An Integration Lab for the Android payments ecosystem: every gateway behind one abstraction, with a live look at what actually happens on each transaction.
A Kotlin Multiplatform systems showcase: real payment flows across dozens of providers, all behind a single PaymentGateway abstraction, backed by a Ktor server that owns order creation, signature verification and webhook reconciliation.
One Brain Two Bodies1
A native, multiplatform AI career-intelligence engine, and the open-source project it's built on.
A local-first job-search engine rebuilt from scratch in Kotlin Multiplatform: resume onboarding, reverse-ATS discovery, evidence-based fit scoring and tailored résumés. Its scoring engine is ported and verified against the open-source career-ops project I actively contribute to upstream.
A first-person time-loop game about a moment someone could not let end.
Godot 4.7 in GDScript. A deterministic echo-replay spine powers cooperative echoes, ghosts, and boss desync from one system, with recorded input intent replayed through the same physics step. Built solo as an AI-orchestrated dev crew.
A statutory student-grievance redressal system, built to survive a UGC inspection rather than a demo.
Next.js 16 over Postgres with row-level security, rewriting a 2019 MANIT Bhopal final-year project (a downloaded complaint-box template, categories still reading E-commerce and Online Shopping) into a real compliance system: a statutory SLA clock, a hash-chained append-only audit trail, and published closure-time transparency with no login required.
// background
// not a PDF with a pulse
A running program, not a slide deck: Eight interactive rooms, each a small proof of the engineering above — plus 19,236 rated and casual chess games, mined and analysed at build time. The chess finding was not flattering: 41.1% of my decided games ended on a clock, not on a board.
the numbers, and what verifies them
real programs, in the page
long records, read as evidence
// before the code
Before the Android work there were three years of a college magazine and a literary society — English Editor, then Joint Chief Editor of a 128-page edition shipped entirely remotely. Five published stories, all readable here, and the pieces the board wrote about me. It's a different life, so it gets a different room.
"Three years, three parodies: the punster who over-thought everything, the editor who could not cut his own 25-page draft, and finally the one who held the fort, error-checking other people's work, absorbing the flak from other teams so his own did not have to, and refusing to abandon it in his final year. The last one is still the job description."
Ask my AI assistant anything about my work, or reach out directly. I reply fast.
siddharthpandalai990@gmail.com
// one codebase
These are the real Kotlin Multiplatform builds, compiled to Wasm and served from this domain. Drag the width and the Compose layout re-flows at the same window size classes the code branches on.
Gaddi · Phone · 412×892dp · compact · shown at 40%
// on the store
Shipped Android work, live on Google Play. Every rating and install count below was read from the listing itself, not quoted.
Dice.techDice Employee HQTechnical owner & Product Owner4.5stars100K+installs
JugnooJugnooAndroid developer4.5stars5M+installs
JugnooJugnoo DriversAndroid developer4.5stars1M+installsThe Jugnoo rider and driver apps were a white-label platform: every client got its own build of the same codebase, its own branding, and its own listing on Play under its own company. I worked on it for two and a half years and never had a list of what came out of it — so I put one together, and kept only the apps the store itself shows were still shipping while I was there or after.
// the source
The libraries the apps share, the tooling around them, and the upstream PRs: open, and one click away. The numbers are pulled from each repo, not typed by hand.
Doori, PaymentsLab-KMP, Candidai and Gaddi aren't four isolated demos. They're four KMP apps sitting on a common foundation I built and maintain separately. All four pull in my own convention-plugin and MVI-base libraries as composite builds, so the build wiring and the unidirectional-state contract are written once and reused, exactly the platform discipline I bring to a codebase at scale.
Gradle convention plugins: one place that configures every KMP module's targets, Compose, lint and test wiring.
composite build · Doori + PaymentsLab-KMP
A vendored KMP toolkit: the tiny (State, Event) → Effects mvi-core base (the reducer/store contract the payment state machine is built on), plus shared feedback/common modules.
the contract the apps share
Field notes on the hard parts — the essays behind the case studies, versioned like code.
the story behind the numbers
React 19 + Vite + a provider-agnostic LLM chat grounded in this CV — plus every interactive world you're clicking through.
you're looking at it
Loading the project directory…
// tech stack
Filter by area, spin the orbit, or just hover the cloud.
// how the board wrote me
Three years on MANIT's Editorial Board closed each edition with EB Profiles: every member gets one question, answered by a teammate impersonating them. Affectionate, unsparing, and not written by me, which is the only reason they're worth reading. Trimmed here to keep other people's names out of it; each card opens the scanned page it came from.
English Editor
Q: What's your new year resolution?
"Do you mean Re; Solution? I bought that for my hair. It's shiz only intellectuals understand. I plan to paint my hair yellow and visit every eatery with my NRI squad. Also, I plan to learn how to ride a bike and enhance my collection of nerve-wrenching puns…"
~「RHM: Rapid Hand Movement」~
Excelsior ’19 · page 141 →English Editor
Q: What are you doing?
"…I have been so caught up with trying to shorten this article that I can't find time. Can't we keep it as it is? It's just 25 pages."
~「types more jargon」~
Excelsior ’20 · page 119 →Joint Chief Editor & Chief English Editor
Q: How's it going?
"…This JC will hold the fort for as long as it takes. For a mother can't trust anybody with her child, yk. … Doesn't matter if y'all don't reply to my messages, don't turn in work at deadlines, etc etc. Yaar tumhare liye design teams se gaali bhi kha lunga but never abandon EB."
~「Pastes his write-up in a freshly error-checked code」~ · FYC, Final Year Crisis
Excelsior ’21 · page 118 →The magazine these came from, and the societies around it, are at The Ink.
Project directory
Case studies, source, Kotlin API docs, live builds, narrated tours and installable apps in one index.
Gaddi
A Hinglish social-deduction bluffing game of power, satire & second chances. Gaddi ke liye kuch bhi karega.
Doori
Offline-first mileage, travel & expense tracker on one Kotlin codebase across Android, iOS, Wear OS, watchOS & Desktop.
PaymentsLab-KMP
An Integration Lab for the Android payments ecosystem: every gateway behind one abstraction, with a live look at what actually happens on each transaction.
Candidai
A native, multiplatform AI career-intelligence engine, and the open-source project it's built on.
Portfolio Twin
The site you're reading, plus Panda the assistant that answers for me, and the whole thing rebuilt a second time in Compose Multiplatform, one commonMain to Web, Desktop, Android and iOS.
STUTTER
A first-person time-loop game about a moment someone could not let end.
SINC-P
A statutory student-grievance redressal system, built to survive a UGC inspection rather than a demo.
The KMP toolkit family
Three decoupled repos so a new app starts at "write the feature".
The Loopdown
Field notes from an engineer who writes: one war story, four channels, one branded card.
GitHub Repo Finder
Android prototype · repository search
Algorithm submissions
Practice archive · NeetCode solutions
GitHub profile
Profile README · engineering overview
Portfolio asset host
Site infrastructure · static assets and downloads
The Night Shift
Sensors Who Lie
Chain Of Custody
Crossing The Schema
